The Gage Rod-Breather,liquid Level, cataloged under National Stock Number 6680-00-397-6697, is classified within Federal Supply Class 6680 (Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments) of the Instruments and Laboratory Equipment group. The manufacturer of record is Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6680-00-397-6697 |
| Primary Part Number | 203082 |
| Item Name | Gage Rod-Breather,liquid Level |
| FSC / FSG | 6680 / 66 — Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments |
| Manufacturer | Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic |
| Status | ACTIVE |
| Rod Measuring Portion Width | 0.375 INCHES NOMINAL IN |
| Breather Filter Material | PROVIDED |
| Scale Inscription | FULL AND LOW |
| Surface Treatment | PAINT |
| Rod Length From End to Breather | 9.000 INCHES IN |
| Breather Mounting Type | UNTHREADED |
| Material | STEEL |
| Largest Diameter | 2.718 INCHES NOMINAL IN |
| Rod Measuring Portion Thickness | 0.125 INCHES NOMINAL IN |
| Mounting Outside Diameter | 2.718 INCHES NOMINAL IN |
| Distance From Rod End to Scale Graduation | 1.500 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 203082 PRIMARY | Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic (USA) |
NSN 6680-00-397-6697 is a Gage Rod-Breather,liquid Level, manufactured by Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic, classified under FSC 6680, Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments. Status: active.
NSN 6680-00-397-6697 has 1 manufacturer part number on file: 203082 (Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic).
3 possible matches (shared part number, not a government interchangeability claim): 6680-01-112-7659, 4935-01-121-7251, 5355-01-274-4711. Verify interchangeability with system specifications before substitution.
Key specifications for 203082: Rod Measuring Portion Width: 0.375 INCHES NOMINAL IN; Overall Height: 1.562 INCHES NOMINAL IN; Breather Filter Material: PROVIDED; Scale Inscription: FULL AND LOW. 11 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.